I own a Bernina Record 830 - but I have never bought one. My Bernina was my mother's - she was given it by her soon to be ex husband, as a bribe/gift in 1971. It cost nearly US$1000 at the time - that was an awful lot money. She'd probably be amused to know that those exact same machines sell today on eBay for not a lot less.
The Bernina Record 830 is a design classic, its Bernina's most popular machine for good reason. Althought it was expensive it was the best sewing machine of it day - an 830 is still a much better machine than a new machine that would cost around the same amount of money. Sure it only an "electronic" Bernina because its not a treadle powered, it has an electric motor, but it actually has most of what most people want from a regular sewing machine.